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<DIV><FONT size=2 face=Arial>Dear Crispin</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px"
dir=ltr>
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=crispinpigott@gmail.com href="mailto:crispinpigott@gmail.com">Crispin
Pemberton-Pigott</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">'Discussion of biomass cooking
stoves'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, December 07, 2010 9:57
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] Drawing down the
dung pile</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN style="COLOR: #1f497d">Hang on…</SPAN><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt; mso-fareast-language: EN-CA"
lang=EN-US><o:p></o:p></SPAN></B></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt; mso-fareast-language: EN-CA"
lang=EN-US><o:p> </o:p></SPAN></B></P>
<P class=MsoNormal><B><SPAN
style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt; mso-fareast-language: EN-CA"
lang=EN-US>></SPAN></B><SPAN
style="FONT-FAMILY: 'Arial','sans-serif'; FONT-SIZE: 10pt; mso-fareast-language: EN-CA">If
halogens are present, the flame will turn green.<SPAN
style="COLOR: #1f497d"><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA">Copper heated to a high
temperature always give a green flame. Copper oxide.</SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"></SPAN> </P>
<P class=MsoNormal><SPAN style="COLOR: #1f497d; mso-fareast-language: EN-CA">#
No. You get a clear flame when no halogens are present. You only get the green
when halogens are present. </SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"></SPAN> </P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA">Best wishes,</SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"></SPAN> </P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA">Kevin<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA">??<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA">Crispin<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="COLOR: #1f497d; mso-fareast-language: EN-CA"><o:p> </o:p></SPAN></P></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>Stoves mailing
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<P>
<HR>
<P></P>
<P class=avgcert align=left color="#000000">No virus found in this
message.<BR>Checked by AVG - <A
href="http://www.avg.com">www.avg.com</A><BR>Version: 10.0.1170 / Virus
Database: 426/3302 - Release Date: 12/07/10</P></BLOCKQUOTE></BODY></HTML>